A very rare Siemens & Halske electro-mechanical cipher machine T-43, German, circa 1944,

This lot has been removed from the website, please contact customer services for more information

Lot 9TP
A very rare Siemens & Halske electro-mechanical cipher machine T-43, German, circa 1944,

£ 10,000 - 15,000
US$ 13,000 - 19,000
Amended
A very rare Siemens & Halske electro-mechanical cipher machine T-43, German, circa 1944,
the working example Schlüsselfernschreibmaschine with keyboard and perforated paper tape feed mounted alongside, the mechanism in black painted metal case with hinged lid and glass cover and electrical power points, on wooden base, 23in (59cm) wide

Footnotes

  • This phantom of crypto-history, the T43 was one of the first machines to work on the principle of the One Time Pad and given the code name "TRASHER" by the staff at Bletchley Park. For each character typed on the keyboard a random character is read from the key tape and mixed with the original character by means of an XOR-operation. Once the key character is read from the paper tape it is destroyed by the built-in puncher and so making it impossible to be reused. This device is considered to be the successor to the cipher machine T52, which also came from Siemens & Halske, a forerunner of today's Siemens group.

    It is considered that only 30-50 of these machines were built so this device is much rarer than the Enigma cipher machines and was used in the last months of the war by the Germans at the highest level including at OKW/CHI encryption department of the High Command of the Wehrmacht OKH and at the Marine and Foreign Offices. They were also deployed to operations in Norway, Spain and South America.

    After the war, the Allied Target Intelligence Commission (TICOM) arranged for the transport of six T-43s to the USA together with German encryption specialists and a number of machines used in Norway were sent to Bletchley Park.

    For further information see:
    https://www.heise.de/tp/features/Hitlers-letzte-Maschinen-3435701.html
    https://www.cryptomuseum.com/crypto/siemens/t43/index.htm

Saleroom notices

  • Please note: This is a model T37 and not a T43 as stated in the catalogue. The revised estimate is £10,000-15,000.
Contacts
A very rare Siemens & Halske electro-mechanical cipher machine T-43, German, circa 1944,
A very rare Siemens & Halske electro-mechanical cipher machine T-43, German, circa 1944,
Auction information

This auction is now finished. If you are interested in consigning in future auctions, please contact the specialist department. If you have queries about lots purchased in this auction, please contact customer services.

Buyers' Obligations

ALL BIDDERS MUST AGREE THAT THEY HAVE READ AND UNDERSTOOD BONHAMS' CONDITIONS OF SALE AND AGREE TO BE BOUND BY THEM, AND AGREE TO PAY THE BUYER'S PREMIUM AND ANY OTHER CHARGES MENTIONED IN THE NOTICE TO BIDDERS. THIS AFFECTS THE BIDDERS LEGAL RIGHTS.

If you have any complaints or questions about the Conditions of Sale, please contact your nearest customer services team.

Buyers' Premium and Charges

For all Sales categories, buyer's premium excluding Cars, Motorbikes, Wine, Whisky and Coin & Medal sales, will be as follows:

Buyer's Premium Rates
27.5% on the first £20,000 of the hammer price;
26% of the hammer price of amounts in excess of £20,000 up to and including £700,000;
20% of the hammer price of amounts in excess of £700,000 up to and including £4,500,000;
and 14.5% of the hammer price of any amounts in excess of £4,500,000.

VAT at the current rate of 20% will be added to the Buyer's Premium and charges excluding Artists Resale Right.

Payment Notices

For payment information please refer to the sale catalogue.

Shipping Notices

For information and estimates on domestic and international shipping as well as export licences please contact Bonhams Shipping Department.

Lot symbols
TP Off site storage location

Lot will be moved to an offsite storage location (Cadogan Tate, Auction House Services, 241 Acton Lane, London NW10 7NP, UK) and will only be available for collection from this location at the date stated in the catalogue. Please note transfer and storage charges will apply to any lots not collected after 14 calendar days from the auction date.

App